Ruby Error: Not Finding Variable Defined in Loop

Question

I have code in Ruby that defines a variable in a loop.

print("What difficulty do you want on a scale of 1-5?\n")
loop do
  difficulty = gets.to_i
  break if difficulty == 1 or difficulty == 2 or difficulty == 3 or difficulty == 4 or difficulty == 5
end
range = 10 if difficulty == 1
range = 100 if difficulty == 2
range = 500 if difficulty == 3
range = 1000 if difficulty == 4
range = 5000 if difficulty == 5

I get an error that the variable difficulty is undefined. I think this is an issue from the loop. and I do not know how to implement it into another form that would serve the same purpose. Is there a way that I could make the variable global? I have tried looking up other ways to make it in another format but nothing has helped.

Sebastián Palma · Accepted Answer · 2019-12-12 15:55:34Z

2

You can define it outside the loop otherwise, it'd be scope-constrained.

Try:

difficulty_range = {
  1 => 10,
  2 => 100,
  3 => 500,
  4 => 1000,
  5 => 5000
}

difficulty = nil

loop do
  print("What difficulty do you want on a scale of 1-5?\n")
  difficulty = gets.to_i
  break if (1..5).include?(difficulty)
end

p difficulty_range[difficulty]

answered Dec 12, 2019 at 15:55

Sebastián Palma

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